Question

which is a thesis statement?
how should we incorporate factors such as nutrition and exercise when considering ways to improve our overall health?
people should eat more vegetables because they lower the risk of heart disease, increase life expectancy, and help to build healthy bones.

Explanation:

A thesis statement presents a clear, arguable claim with supporting reasons, not a question. The first option is an interrogative that seeks information, while the second is a declarative claim with specific justifications.

Answer:

People should eat more vegetables because they lower the risk of heart disease, increase life expectancy, and help to build healthy bones.